ul,ol,li {
    list-style: none;
}
html,body {
    position: relative;
}
* {
    margin: 0;
    padding: 0;
}
a {
    text-decoration: none;
    color: #000;
}
.content {
    width: 100%;
}
.headLine_1 {
    width: 1100px;
    margin: 0 auto;
    border-bottom: black 1px solid;
    height: 50px;
}
.headLine_1 > a,h3 {
    display: inline-block;
}
.s_1 {
    color: rgb(153, 153, 153);
}
.s_2 {
    margin-left:640px;
    line-height:50px;
    vertical-align:middle;
}
.detail {
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    height: 500px;
}

.detail > .show {
    width: 500px;
    margin-right: 10px;
}

.detail > .desc {
    flex: 1;
    box-sizing: border-box;
    padding: 10px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.detail > .desc > .title {
    font-size: 24px;
    font-weight: 700;
}

.detail > .desc > .price {
    color: red;
    font-size: 40px;
}

.detail > .desc > .size {
    display: flex;
}

.detail > .desc > .size > span {
    border: 1px solid #333;
    border-right: none;
    padding: 5px 10px;
    cursor: pointer;
}

.detail > .desc > .size > span:first-child {
    border-radius: 5px 0 0 5px;
}

.detail > .desc > .size > span:last-child {
    border-right: 1px solid #333;
    border-radius: 0 5px 5px 0;
}

.detail > .desc > .size > span:hover {
    background-color: #c3c3c3;
}

.detail > .desc > .number {
    display: flex;
}

.detail > .desc > .number > input {
    border: none;
    width: 100px;
    text-align: center;
}

.detail > .desc > .number > button {
    width: 30px;
    height: 30px;
}

.detail > .desc > button {
    padding: 5px;
}

.info {
    margin-top: 30px;
}
